TW202200053A - Pillow - Google Patents

Abstract

A purpose of the present invention is to provide a cushion body whose shape can vary along the shape of a person or according to the expectations of the person when the person sits or lies thereon. The present invention attains the purpose by a pillow which is a pillow for humans having a bag body at least a part of which is stretchable, and a filling material inside the bag body, wherein the filling material includes foamed beads; when the pillow is erected on the ground in such a way that the longest direction of the pillow is in parallel with the direction of the gravity, and the top of the pillow is extended upward in such a way that the contact area between the ground and the pillow does not change, the space where the filling material does not exist is formed in the upper part of the pillow with a length of 1/10 to 2/3 of the maximum length of the pillow; and when a person is lying on the pillow with at least his buttocks abutting against the pillow which is placed on the ground such that its maximum length direction is in parallel with the ground, the buttocks touch the bottom of the pillow.

Description

pillow

The present invention relates to a pillow. More specifically, according to the present invention, it relates to a pillow whose shape can be varied according to the person's shape or according to the person's desire, for example, when a person is sitting or lying down.

Various shapes of cushion bodies including pillows are known.

For example, in Japanese Patent Laid-Open No. 2004-223002 (Patent Document 1), it has been proposed that "a cushion body is enclosed in a stretchable bag body in a volume of 1.1 to 3.5 times the internal volume of the bag body. The foamed resin particles are used as a filler.”

In addition, Japanese Patent Laid-Open No. 2005-230137 (Patent Document 2) proposes a cushion body that can be used for preventing bedsores.

[Prior Art Literature]

[Patent Literature]

Patent Document 1: Japanese Patent Laid-Open No. 2004-223002

Patent Document 2: Japanese Patent Laid-Open No. 2005-230137

In the cushion system described in Patent Document 1, an excessive amount of filler is enclosed (overfilled) in the inner volume of the bag. The excessively filled filling material does not easily move in the bag body, so the cushion body has a hard touch.

In recent years, a mobile information terminal such as a smart phone may be used in a prone or supine manner. In this mode of use, for example, when a person is sitting or lying down, the shape of the softer cushion system is not easy to change along the shape of the person, and it will give people local pressure, so it is difficult to say that it is suitable for long-time prone or lying down. Use it in a tilted position.

Especially when the mobile information terminal is used in the prone position, the back muscles are warped, which will cause a burden on the waist. In order to reduce this burden, it is necessary to change the shape of the human body so that local pressure is not applied to the chest to the front of the thigh. However, with a soft cushion body with a hard touch, this kind of pressure cannot be expected. Variety.

Moreover, in patent document 2, it is described that the cushion which sinks to the bottom will cause a bedsore at the site|part. Cushioned body premised on bottoming is not implied.

Thus, according to the present invention, there is provided a pillow for human use, which at least has a bag body at least a part of which is stretchable, and a filling material in the bag body;

The aforementioned filling material comprises expanded beads (beads);

When the pillow is placed on the ground in such a way that the longest direction of the pillow is parallel to the direction of gravity, and the top of the pillow is extended upward in such a way that the contact area between the ground and the pillow does not change, there is no The space for the aforementioned filling material is formed on the upper portion of the aforementioned pillow with a length of 1/10 to 2/3 of the maximum length of the aforementioned pillow;

When a person is lying down with at least the buttocks against the pillow placed on the ground with the longest direction parallel, the buttocks touch the bottom of the pillow.

Furthermore, according to the present invention, there is provided a pillow for human use, which at least has a bag body at least a part of which is stretchable, and a filling material in the bag body;

The aforementioned filling material comprises expanded beads;

When the pillow is placed on the ground in such a way that the longest direction of the pillow is parallel to the direction of gravity, and the top of the pillow is extended upward in such a way that the contact area between the ground and the pillow does not change, there is no The space for the aforementioned filling material is formed on the upper portion of the aforementioned pillow with a length of 1/10 to 2/3 of the maximum length of the aforementioned pillow;

When a person is lying down so that at least the buttocks abut on the pillow placed on the ground with the longest direction being parallel, the buttocks will touch the bottom of the pillow;

When the aforementioned person turns over on the aforementioned pillow, the aforementioned expanded beads existing in the lower part of the aforementioned buttocks act as a rotating body, so that turning over can be easily performed.

Further, according to the present invention, there is provided a pillow comprising at least a bag body at least a part of which is stretchable, and a filling material in the bag body;

When the pillow is placed on the ground in such a way that the longest direction of the pillow is parallel to the direction of gravity, and the top of the pillow is extended upward in such a way that the contact area between the ground and the pillow does not change, there is no The space for the aforementioned filling material is formed on the upper portion of the aforementioned pillow with a length of 1/10 to 2/3 of the maximum length of the aforementioned pillow;

When a disc with a diameter of 20 cm is pressed against the aforementioned pillow, and a force of 1 to 20 kg is applied to the aforementioned disc along the direction of gravity, the aforementioned disc will touch the bottom of the aforementioned pillow.

The pillow of the present invention can be deformed into various shapes by a suitable range of concave bottom.

Thus, for example, when used in a prone or supine position, the shape of the pillow will vary along the contours of the person. Therefore, the pillow of the present invention can be used for a long time in the state of lying on the stomach or leaning up. Furthermore, by moving the filler, the pillow can be deformed into a desired shape.

In addition, when sitting and lying on the pillow, it will be greatly deformed as if it contains the body, so it can obtain a large healing effect (like the feeling of the image of the rising cloud).

Furthermore, when a person turns over on the pillow, the foamed beads existing in the lower part of the buttocks act as a rotating body, so that it is easy to turn over.

1: pillow

1a: coat

2: Disc

3: heavy objects

4: Cloth

5: Sofa

6: seam

7a: Small air chamber

7b: Atmospheric Chamber

a: The contact part between the ground and the pillow

X: maximum length

X1: Maximum length (length)

FIG. 1 is a schematic diagram illustrating a state in which a force is applied to the pillow.

FIG. 2 is a schematic diagram illustrating a state in which a force is applied to the pillow.

FIG. 3 is a schematic diagram illustrating a state in which a force is applied to the pillow.

FIG. 4 is a schematic diagram of the pillow of Embodiment 1. FIG.

FIG. 5 is a schematic diagram of the pillow of Embodiment 1. FIG.

FIG. 6 is a schematic diagram of the pillow of Embodiment 1. FIG.

FIG. 7 is a schematic diagram of the pillow of Embodiment 1. FIG.

FIG. 8 is a schematic diagram of the pillow of Embodiment 1. FIG.

FIG. 9 is a schematic diagram of the pillow of Embodiment 1. FIG.

FIG. 10 is a schematic diagram of the pillow of Embodiment 1. FIG.

FIG. 11 is a schematic diagram of a pillow of Embodiment 2. FIG.

FIG. 12 is a schematic diagram of the pillow of Embodiment 2. FIG.

FIG. 13 is a schematic diagram of a pillow of Embodiment 2. FIG.

FIG. 14 is a schematic diagram of a pillow of Embodiment 2. FIG.

FIG. 15 is a schematic diagram of the pillow of Embodiment 2. FIG.

FIG. 16 is a schematic diagram of a pillow of Embodiment 2. FIG.

FIG. 17 is a schematic diagram of the pillow of Embodiment 2. FIG.

FIG. 18 is a schematic diagram of a pillow of Embodiment 3. FIG.

FIG. 19 is a schematic diagram of a pillow of Embodiment 3. FIG.

FIG. 20 is a schematic diagram of a pillow according to Embodiment 3. FIG.

FIG. 21 is a schematic diagram of a pillow according to Embodiment 4. FIG.

The following description assumes that the pillow (cushion body) of the present invention is mainly used by humans (adults, children, women, men, etc.), but the pillow of the present invention can also be used by pets (for example, dogs, cats, etc.) in addition to humans .

The pillow of the present invention has the following properties (i) to (iii).

(i) When the pillow is placed on the ground so that the longest direction of the pillow is parallel to the direction of gravity, and the top of the pillow is extended upward so that the contact area between the ground and the pillow does not change, there is no such filling. The space for the material will be formed in the upper part of the pillow with a length of 1/10 to 2/3 of the maximum length of the pillow.

(ii) When a person is lying down with at least the buttocks against a pillow placed on the ground in a longest direction parallel to the ground (used in the supine position), the buttocks will touch the bottom of the pillow.

(iii) When a person rolls over on the pillow, the expanded beads existing in the lower part of the buttocks act as a rotating body, so that the person can easily roll over.

Therefore, the pillow can be deformed into various shapes. For example, when used in a prone or supine position, the shape of the pillow varies along the contours of the person. As a result, the pillow of the present invention can be used in the state of lying on the stomach or leaning up for a long time. Furthermore, the pillow can be deformed into a desired shape by moving the filling material by hand or foot.

In addition, when sitting and lying on the pillow, it will be greatly deformed as if to contain the body, so a large healing effect can be obtained.

Furthermore, when a person turns over on the pillow, the foamed beads existing in the lower part of the buttocks act as a rotating body, so that it is easy to turn over.

The so-called buttocks touching the bottom of the pillow (sinking bottom) means that the inner surface of the part that contacts the buttocks and the inner surface of the part that contacts the ground of the bag body substantially contact. The so-called substantial contact refers to the situation in which the inner surface of the part of the bag body that contacts the buttocks and the inner surface of the part that contacts the ground are in complete contact with no filler material in between, and also includes direct contact with a part of the inner surface. On the other hand, there is a case where there is a filler in the other part.

Properties (i)

By forming a space where there is no filling material in the upper part of the pillow with a length of 1/10 to 2/3 of the maximum length of the pillow, it can be used in the prone position, in the supine position, and in any situation of sitting. , can make the pillow deform into a large body as if it were contained.

As a measurement method of the length of a space, the method shown to FIG.1(a)-(c) is mentioned, for example. FIGS. 1( a ) and ( b ) show the state where the pillow is placed on the ground without applying an external force other than gravity. Fig. 1(a) is a side view, and Fig. 1(b) is a top view. In Figs. 1(a) and (b), "a" means the contact portion between the floor and the pillow. Fig. 1(c) shows a state in which the top of the pillow is extended upward so that the contact area between the ground and the pillow does not change. In Figure 1(c), X refers to the maximum length of the pillow, and X1 refers to the maximum length of the space.

The length of the space is preferably 1/7 to 1/2 of the maximum length of the pillow, more preferably 1/5 to 1/3. The lower limit of the length of the space can be selected from 1/10, 1/9, 1/8, 1/7, 1/6, 1/5 of the maximum length of the pillow, and the upper limit can be selected from 2/3, 3/5, 11/20, 1/2, 9/20, 2/5, 1/3 selection.

The maximum length of the pillow can be appropriately set, for example, within a range of 10 cm to 3 m according to the use of the pillow. The maximum length can be set to 20cm, 30cm, 40cm, 50cm, 60cm, 70cm, 80cm, 90cm, 1m, 1.25m, 1.5m, 1.75m or 2m.

The pillow can have an average thickness of 5 to 100 cm when placed with its longest direction parallel to the ground. The average thickness can be set to 10 cm, 20 cm, 30 cm, 40 cm, 50 cm, 60 cm, 70 cm, 80 cm or 90 cm. The average thickness refers to the thickness at which the pillow is flattened so that the thickness of the pillow on which it is placed is as constant as possible. The average thickness can be set to 1/2 to 1/10 of the maximum length.

The contact area between the floor of the pillow and the pillow when the longest direction of the pillow is parallel to the direction of gravity is not particularly limited, but can be appropriately set in the range of 0.005 m ² to 5 m ² according to the use of the pillow. The range of the contact area of the pillow can be set from 0.005m ² , 0.0075m ² , 0.01m ² , 0.015m ² , 0.02m ² , 0.025m ² , 0.03m ² , 0.035m ² , 0.04m ² , 0.05m ² , 0.075m ² , 0.1m ² , 0.125m ² , 0.15m ² , 0.2m ² , 0.25m ² , 0.3m ² , 0.4m ² , 0.5m ² , 0.6m ² , 0.7m ² , 0.75m ² , 0.8 m ² , 0.9m ² , 1.0m ² , 1.25m ² , 1.5m ² , 1.75m ² , 2.0m ² , 2.5m ² , 3.0m ² , 3.5m ² , 4.0m ² , 4.5m ² , 5.0m ² The range represented by the combination of any selected upper limit value and lower limit value.

Properties (ii)

When a person is lying down (used in the upside-down manner) so that at least the buttocks abut against the pillow placed on the ground in a way that is parallel to the longest direction, the buttocks will touch the bottom of the pillow (sunk bottom), so that when the person is used in the prone manner , The pillow can be greatly deformed to contain the body in any situation when it is used in the upside-down manner, or when sitting on the back. In addition, the person here is, for example, a person with a weight of 40 kg or more, and is assumed to be an adult. In the case of an adult, it is assumed that the weight applied to the bottom part is about 44% of the weight around the buttocks.

For example, when used in a reclining manner, the buttocks, where the center of gravity of the entire body (body center of gravity) is located, sinks in the occiput. On the other hand, since there are fillers from the shoulders to the head and the lower part of the thighs, it is possible to form a raised state. In this state, the waist becomes a moderately bent posture. Conventionally, in bedding pads, it has been considered that it contributes to the improvement of healing provision and the improvement of sleep quality by deforming along a person's outer shape in an upright posture (S posture of the back). However, considering that humans evolved from animals that walk on all fours, it is thought that a near-fetal posture (a posture in which the knees are gently drawn close to the chest and the back is slightly bent) is more conducive to healing and providing sexual lift and sleep. Quality improvement. The pillow has the effect of relieving the tension of the body or the mind even as an adult, just like a baby stops crying by adopting a fetal position. In addition, the posture that can be obtained by using a pillow can also be said to be equivalent to a neutral posture. The so-called neutral position refers to the position in which the space pilot will feel the least burden in the state of zero gravity. That is, it is known that in a weightless state, the back is slightly bent and the thighs are raised, and the tension of the muscles and the load on the back bones are minimized. This neutral position can be achieved by lying on a pillow.

Properties (iii)

When a person turns over on the pillow, the foamed beads existing in the lower part of the buttocks act as a rotating body, so that it is easy to turn over.

During the turning process, the bag body will expand and contract, and the filling material (foamed beads) will also flow (playing the role of a rotating body), so that the pillow 1 can be easily deformed according to the changes of the body. Specifically, in the part where the pillow is in contact with the body (eg, buttocks), the body (buttocks) touches the bottom of the pillow, and in the part adjacent to the part in contact, the pillow edge is caused by the flow of the filling material. The shape of the body bulges. Therefore, take Any posture allows for proper distribution of body pressure without concentrating it in one point. Therefore, it can accommodate the body in any situation of use in the prone position, use in the supine position, and sitting.

other properties

When a person is lying down with at least the buttocks against the pillow, a concave portion may be provided. The concave portion is formed by the filler material moving in such a way that the buttocks touch the bottom of the pillow without the upper body and thighs touching the bottom. . By having the recessed portion, the fetal posture and/or the neutral posture can be easily performed. The size of the concave portion is formed by the movement of the filling material, so it can follow various changes of the human body.

The pillow may also have the property that when a 20 cm diameter disc is pressed against the pillow and a force of 1 to 20 kg is applied to the aforementioned disc along the direction of gravity, the disc will touch the bottom of the pillow.

The position where the disc is brought into close contact with the pillow is not particularly limited. In addition, the disc system can cover the whole of the pillow to touch the bottom, or only a part of it can touch the bottom.

The position of the pillow against which the disc is abutted can also be located near the center of the top surface of the erected pillow when the pillow is erected in such a way that the longest direction of the pillow is parallel to the direction of gravity. In this position, the pillow can be greatly deformed to appear to contain the body in any situation of use in the prone position, use in the supine position, and sitting.

The reason for making the diameter of the disk 20 cm will be described below.

The diameter of 20 cm is the diameter of the circle in the case where the area where the buttocks is in contact with the ground is assumed to be a circle from the viewpoint of sitting against the pillow during measurement. When the buttocks touch the ground, body pressure is concentrated on the two ischial tuberosities at the base of the pelvis. Furthermore, the diameter of the circle needs to take into account the situation of the bottom, and it is also specified to include the area showing higher body pressure around the ischial tuberosity. Here, according to the literature on the study of the force applied to the buttocks (Journal of the Japanese Society of Prosthetic Instruments Vol.29 No.3 pp168-174 2013), it is known that two ischium The interval between nodules is 8 to 15 cm in adults. When the buttocks are in contact with the ground, since the peripheries of the two ischial tuberosities are also in contact, the diameter of the disc is determined to be 20 cm in consideration of the peripheries.

In addition to 20cm, the diameter of the disk can be selected from any of 30cm, 40cm, 50cm and 60cm. If it is a disc with a larger diameter, the pillow may be deformed more greatly, so it can be used for a longer time in the prone or supine state, and it will be deformed to a larger extent as if the body is contained in the sitting situation. .

The applied force can be selected in the range of 1 to 20 kg depending on the use of the pillow. For example, in the case of a pillow to sit on, a larger force may be selected, and if a pillow to lie on, a smaller force may be selected. The applied force can also be set to 2kg, 3kg, 4kg, 5kg, 6kg, 7kg, 8kg, 9kg, 10kg or 15kg.

The reason for making the upper limit of the applied force 20 kg will be described below.

The upper limit of the force is 20kg, which is determined on the basis of the weight around the buttocks from the viewpoint of leaning on the pillow and sitting down. For example, according to a document published by the Institute of Industrial Technology in 2007, the average weight of women over the age of 16 is about 53kg, and according to a document published by Nishikawa Co., Ltd. in 2019 (2019) A survey of the subject analysis aiming at the benchmark decision-making of sleep optimization evaluation methods), the body pressure dispersion rate of the waist and hip is about 44%. In other words, a force of about 23 kg (53 x 0.44) will be applied to the bottom of the pillow that the buttocks touch. By setting the upper limit of the force to 20kg, even an adult woman can surely achieve bottoming.

In addition, regarding adult males, since females with a larger average weight are heavier, the upper limit of the force is 20kg, and bottoming can be reliably achieved.

In addition, in the lower grades (6 to 7 years old) of elementary school students who may actively use the pillow, when sitting on the pillow, the feet will also rest on the pillow, so it is assumed that roughly the entire body weight will be added to the bottom of the buttocks. Here, based on the Ministry of Health, Labour and Welfare's Health and Welfare (Health and Welfare) Statistical Guide (the first year of Reiwa (2019)), Part 2 Health Chapter 1 Health Care Tables 2 to 6 "Average of height and weight, gender, year x age", the weight of this age group is about 23kg. In this age group, in order to achieve bottoming, it is appropriate to set the upper limit of the force to 20kg.

The methods for applying a force of 1 to 20 kg are as follows. First, as shown in FIG. 2 , the disc 2 is placed on the pillow 1 . Next, as shown in FIG. 3 , the weight 3 is placed on the disc 2 . The weight 3 is adjusted so that the total of the weight of the disk 2 becomes a predetermined force. After placing the weight 3, lightly press the disc 2 while rotating for about one minute. The fact that the disc 2 touches the bottom of the pillow 1 means that there is substantially no filler material in the bag body directly below the disc 2 . In addition, the term "substantially absent" refers to the case where no filler is present at all, and also includes the concept of a case where a part of the cloth constituting the bag body is in direct contact, and a filler is present in other parts.

2( a ) and FIG. 3( a ) are side views, and FIG. 2( b ) and FIG. 3( b ) are plan views.

In addition, a force of 3 g or more per unit area (cm ² ) of the bottom of the disk may also be applied.

In the cross section in the direction of gravity of the pillow in the state where the disc is in contact with the bottom, the left and right upper parts of the pillow may be tapered from bottom to top, as shown by the dotted line in Fig. 3(a). shape. The pillow can be deformed in a more appropriate state by having a slanted tapered shape. In the oblique taper shape, the degree of the oblique taper is not particularly limited, and can be varied depending on the size of the pillow, the volume of the filling material, the internal volume of the bag body, and the like. In addition, the "upper part" refers to a part of about 1/3 of the maximum length in the direction of gravity from the upper side of the pillow.

When the position of the pillow against which the disc is abutted is near the center of the top surface of the erected pillow when the pillow is erected in such a way that the longest direction of the pillow is parallel to the direction of gravity, it is preferably a circle. The disk only touches the bottom near the center, and the height of the pillow before the force is applied to the disk is substantially the same as the height of the pillow in the state where the disk hits the bottom. By being substantially the same, the pillow can be deformed in a more appropriate state.

The size of the pillow is not particularly limited. For example, when the pillow is placed on the ground so that the longest direction is parallel to the ground, and a person (for example, an adult: 150 to 170 cm in height) sits on his back and lies on the pillow, the pillow has Available in sizes for head only, shoulder only, back only, hip only, thigh only, head to shoulders, head to back spine, head To Hip Placement, For Head To Thigh Placement, For Shoulder To Back Placement, For Shoulder To Buttock Placement, For Shoulder To Thigh Placement, For Back To Buttock Placement, For Back To Thigh Placement, For Hip To Thigh Placement.

The shape of the pillow is not particularly limited. For example, various shapes such as cylindrical shape, egg shape, spherical shape, pyramid shape, rectangular parallelepiped shape, cube shape, rugby shape, sheet shape, ellipse shape, and character shape (for example, characters of animals, cartoons or comics) can be mentioned.

The pillow system is suitable for use on softer components such as beds, quilts, sofas, carpets, and straw mats.

(1) Bag body and filling material

The pillow system includes at least: a bag body whose at least part is stretchable; and a filling material in the bag body. The material constituting the bag body and the filling material is not particularly limited as long as it can provide the pillow with the property of allowing the disk to touch the bottom of the pillow by applying force through the disk.

(1a) Bag body

It is sufficient that at least a part of the bag system is stretchable. In other words, the bag system can have a non-stretchable portion and a stretchable portion. From the viewpoint of being able to be deformed into various shapes, it is preferable that the entire bag body has stretchability.

The bag system can be made of woven cloth, knitted cloth, non-woven cloth, plastic sheet and other cloth materials. The thickness of the cloth material is not particularly limited as long as it can provide suitable stretchability to the bag body. The material of the bag body can be Any of cotton, linen, silk, wool, synthetic fibers (such as spandex, polyurethane elastic yarn), etc., can also be blended.

The bag body preferably has a stretchability of 10 to 500%. The stretchability is more preferably 50 to 400%, particularly preferably 100 to 300%. Here, the stretchability refers to, for example, a value measured in the following manner. A test piece having a tensile interval of 10 cm and a width of 2.5 cm was cut out from the bag body. The test piece was stretched at a speed of 30 cm/min with a general tensile tester, and the elongation at a load of 9.8 N was calculated by the following formula. This measurement is performed for the longitudinal and transverse directions of the test piece. The average value of the elongation in the vertical direction and the horizontal direction was defined as stretchability.

Elongation (%)={Length of test piece under 9.8N load (cm)-10}÷10×100

(1b) Filling material

The filler is not particularly limited, and examples thereof include foamed beads, foamed urethane, cotton, nonwoven fabric, resin tube, three-dimensional combination of resin fibers, gel, rubber, sand, air etc. These fillers can be used alone or in combination. The filler preferably contains expanded beads (for example, 50% by weight or more, 55% by weight or more, 60% by weight or more, 65% by weight or more, 70% by weight or more, 75% by weight or more, 80% by weight or more, 85% by weight or more. above, 90% by weight or more, 95% by weight or more), all of them may be expanded beads.

The foamed beads that exist on the lower part of the buttocks act as a rolling body like a ball bearing when the pillow is turned over, so that it can be easily turned over. This effect is more pronounced when lying down so that at least the buttocks rest on a pillow that is placed on the ground in such a way that the longest direction is parallel, and the buttocks touch the bottom of the pillow. The expanded beads are easy to be electrostatically charged, so they are easy to adhere to the bag body, so they are not easy to be completely removed at the bottom of the sink. Therefore, a part remains in the bottom position, so it is easy to function as a rotating body.

Among the expanded beads, the flow promoter is preferably attached to the surface, and the expanded beads made of polystyrene with an average particle diameter in the range of 200 to 2000 μm are preferred. Since the expanded beads made of polystyrene have high fluidity, pillows that can be deformed into various shapes can be provided. The average particle diameter is more preferably in the range of 400 to 1500 μm, particularly preferably in the range of 400 to 1000 μm.

The average particle diameter can be measured by overlapping sieves of predetermined meshes and applying vibration to the sieves for classification. For example, it can be measured in the following manner. Mesh 4.00mm (4000μm), Mesh 3.35mm, Mesh 2.80mm, Mesh 2.36mm, Mesh 2.00mm, Mesh 1.70mm, Mesh 1.40mm, Mesh 1.18mm, Mesh 1.00mm , Mesh 0.85mm, Mesh 0.71mm, Mesh 0.60mm, Mesh 0.50mm, Mesh 0.425mm, Mesh 0.355mm, Mesh 0.300mm, Mesh 0.250mm, Mesh 0.212mm, Mesh 0.180mm (180 μm) JIS standard sieve for classification. From the cumulative weight distribution curve obtained from the results, the particle diameter (median diameter) at which the cumulative weight becomes 50% is defined as the average particle diameter. Alternatively, the sieves with the above mesh values can also be selected from the mesh with the smaller mesh value, and the mesh size is 0.180mm, mesh 0.212mm, mesh 0.250mm, mesh 0.300mm, mesh 0.355mm , Mesh 0.425mm, Mesh 0.50mm, Mesh 0.60mm, Mesh 0.71mm, Mesh 0.85mm, Mesh 1.00mm, Mesh 1.18mm, Mesh 1.40mm, Mesh 1.70mm, Mesh 2.00mm , mesh 2.36mm, mesh 2.80mm, mesh 3.35mm, mesh 4.00mm are all overlapped and graded in order, and the cumulative weight is 50% of the particle diameter (median) according to the obtained cumulative weight distribution curve. diameter) was set as the average particle diameter.

(2) Others

The pillow may also be covered by a cover. The size of the coat can be the same as that of the pillow, or it can be larger. On the other hand, the size of the pillow can be substituted by the inner volume of the bag body. The size of the coat can be set to about 1 to 3 times the size of the pillow (inner volume ratio). With regard to the inner volume, the bag body and the outer casing of the same size are made of a non-stretchable film, and the inner volume can be replaced by the amount of air filled in the outer casing.

The outer layer can use the same fabric and material as the bag body. The cloth and constituent materials of the outer jacket and the bag body may be the same or different. The stretchability of the outer jacket is preferably the same as or higher than the stretchability of the bag body.

(implementation 1)

4 to 10 show the pillow of Embodiment 1. FIG. The bag system constituting this pillow is composed of elastic fiber woven fabric (polyester (polyester) 85%, polyurethane 15%), stretchability is about 250%, and the filling material is a material with an average particle diameter in the range of about 400 to 1500 μm. Expanded beads of polystyrene.

FIGS. 4( a ) and ( b ) are photographs showing a state in which the pillow 1 is placed on the ground with the longest direction of the bag body parallel to the direction of gravity. Figure 4(a) is a side photo, and Figure 4(b) is a top photo.

As shown in FIG. 4 , the pillow 1 is not overfilled with the filling material, so the top part is recessed into the pillow 1 . In this state, for example, as shown in the photograph of FIG. 5( a ), the pillow 1 can be used with sitting on top. By sitting on the top, the pillow 1 will be greatly deformed to contain the body due to the movement of the filling material and the expansion and contraction of the bag body, so that a large healing effect can be obtained. The pillow 1 can also be used in a prone position as shown in the photo of FIG. 5(b). In this mode of use, the warping of the waist in the prone state can be alleviated. When taking a prone position for a long time, sometimes the lower back pain is caused by the warping of the waist. As shown in FIG. 5( b ), since the warping of the waist can be reduced by deforming the pillow 1 , the pillow 1 has the effect that the waist is less painful even if the pillow 1 takes a prone position for a long time.

As shown in Figure 4(c), when extending the top of the pillow 1 to the upper part, the space (vacancy) without the filling material can be 1/3 to 1/3 of the maximum length (X) of the pillow 1 A length (X1) of 5 is formed on the upper part of the pillow 1 . In addition, the maximum length of the pillow 1 is about 1 m.

When a disc with a diameter of 20 cm was pressed against the pillow 1 and a force of 1 to 20 kg was applied to the disc in the direction of gravity, it was confirmed that the disc would touch the bottom of the pillow.

FIGS. 6( a ) and ( b ) are photographs showing a state in which the pillow 1 is placed on the ground with the longest direction of the bag body parallel to the ground. Figure 6(a) is a side photo, and Figure 6(b) is a top photo. The maximum length in this state is about 1.5 m, and the average thickness is about 40 cm.

As shown in FIG. 6 , the pillow 1 is not overfilled with the filling material, so the pillow 1 expands parallel to the ground. In this state, for example, as shown in the photographs of FIGS. 7( a ) and ( b ), the pillow 1 can be used in a supine or prone manner. The pillow 1 is of a size that can be placed from the head to the buttocks. By using the above-mentioned supine or prone position, the pillow 1 will be greatly deformed to contain the body due to the movement of the filling material and the expansion and contraction of the bag body relative to the ground, so that a large healing effect can be obtained.

When used in an upside-down manner, the buttocks where the center of gravity of the entire body (body center of gravity) is located will sink into the bottom on the pillow 1 . On the other hand, since there is a filler from the shoulder to the lower part of the head and thigh, it is in a raised state. In this state, a concave portion is formed due to the movement of the filler, and the waist is appropriately bent. In the past, in bedding pads, it has been considered that it contributes to the improvement of the healing properties and the improvement of sleep quality by deforming along the human shape so as to maintain an upright posture (S posture of the back). However, considering that humans evolved from animals that walk on all fours, it is believed that adopting a near-fetal posture (a posture in which the knees are slightly drawn toward the chest and the back is slightly arched) is more helpful for healing, providing sexual enhancement and Improve sleep quality. The pillow has the effect of relieving the tension of the body or the mind even as an adult, just like a baby stops crying by adopting a fetal position. In addition, the posture that can be obtained by using the pillow 1 can also be said to be equivalent to a neutral posture. The so-called neutral position refers to the position in which the space pilot will feel the least burden in the state of zero gravity. That is, it is known that in a weightless state, the back is slightly bent and the thighs are raised, and the tension of the muscles and the load on the back bones are minimized. This neutral position can be achieved by lying on pillow 1 .

Furthermore, by raising the upper body, it is possible to improve reflux esophagitis, circulatory or respiratory diseases (such as sleep apnea), diabetes, Alzheimer's disease, Parkinson's disease disease, multiple sclerosis (MS), spinal cord injury, cerebral palsy, venous aneurysm, chronic venous insufficiency, lower leg ulcers, psoriasis, arrhythmia, insomnia, migraine, edema, frequent urination and other symptoms.

When used in a prone position, the filling material can be moved so that the pillow 1 has a desired shape. For example, by moving the filler from under the waist to under the shoulders, the warpage of the waist in the prone state can be alleviated. When you take a prone position for a long time, it will cause back pain due to the warping of the waist. Since the warpage of the waist can be reduced by deforming the pillow 1 , the pillow 1 has the effect that the waist is less painful even if the pillow 1 is in a prone position for a long time.

As shown in FIGS. 8( a ) to ( c ), it is possible to easily turn over on the pillow 1 . In particular, when the buttocks where the center of gravity of the entire body (body center of gravity) is located is used as a fulcrum, it is possible to easily turn over. Figure 8(a) is a photo showing the upside down before turning over, Figure 8(b) is a side-facing photo in the middle of turning over, and Figure 8(c) is a photo showing the prone position after turning over.

During the turning process, the bag body will expand and contract, and the filling material (foamed beads) will also flow (playing the role of a rotating body), so that the pillow 1 can be easily deformed according to the changes of the body. Specifically, in the part where the pillow is in contact with the body (eg, buttocks), the body (buttocks) touches the bottom of the pillow, and in the part adjacent to the part in contact, the pillow edge is caused by the flow of the filling material. The shape of the body bulges. Therefore, taking any posture allows the body pressure to be dispersed properly without concentrating it on one point.

Using the body pressure dispersion meter, it was confirmed that by using the pillow, the body pressure from head to toe can be more approximately uniformly dispersed in any posture than when the pillow is not used.

Furthermore, when turning over, the bulge on the left and right can be maintained, and the plane positions of the body (buttocks) before and after turning over can be made substantially the same. This is derived from the flexibility of the bag body and foam beads The contribution of both the particle's role as a rotor. Here, the term "maintaining the left and right bulges" does not mean strictly, but refers to any value of the width, height, area in plan view, area in side view, and volume of the left and right bulges as a pillow 1. to the same degree. For example, these values are allowed to vary within a range of ±50%, ±40%, ±30%, ±20% or ±10%. On the other hand, in order to make the plane position substantially the same, the front, rear, left and right positions of the buttocks in plan view are allowed to vary by ±30cm, ±20cm, ±15cm, ±10cm, or ±5cm before and after turning over.

Furthermore, as shown in FIGS. 9( a ) and ( b ), the pillow 1 has the function of allowing the caregiver ( Others) can easily switch the body position effect by pulling the cloth 4 with less force (for example, compared to sitting directly on the cloth without a pillow). FIG. 9( a ) is a photograph showing the situation of lying on the pillow 1 in a supine manner with the cloth 4 interposed therebetween, and FIG. 9( b ) is a photograph showing the situation that the body position is changed to face the side by pulling the cloth 4 . The mechanism by which the body position change is facilitated is because the filling material existing under the cloth acts as a rotating body between the ground and the cloth 4 . The pillow 1 which can easily change the body position with less force can achieve the effect of preventing bedsores on the contact surface of the pillow 1 due to the same posture for a person who is difficult to turn over. Furthermore, since the force of the caregiver required for changing the position of the care recipient can be reduced, the effect of suppressing the caregiver from having low back pain can also be achieved. In addition, as is clear from Figs. 9(a) and 9(b), the plane positions of the buttocks before and after the pulling are substantially the same.

The pillow 1 is also suitable for use on a sofa. For example, it can be used as shown in Figs. 10(a) and (b).

FIG. 10( a ) is a state in which the pillow 1 placed on the sofa 5 is sitting up from the buttocks. In this state, from the thigh to the neck, the pillow 1 is greatly deformed along the shape of the back, and the side of the body is also formed into the elbow due to the movement of the filler. Therefore, a sense of containment of the whole body can be obtained, and it is possible to sit on the sofa more relaxedly.

FIG. 10( b ) is a state in which the back is leaned against the pillow 1 placed along the side surface of the sofa 5 and is in a sitting state. By pressing the back against the side of the sofa 5, the pillow 1 is greatly deformed along the shape of the back, and the elbow is formed by the movement of the filling material to the side of the body. Since the amount of the pillow 1 on the back side is larger than that of sitting up from the buttocks, the body on the back side can have a greater sense of containment than in the case of FIG. 10( a ).

(implementation type 2)

11 to 17 show the pillow of the second embodiment. In this pillow, the same elastic fiber woven fabric (bag body) and polystyrene expanded beads (filler) as in Embodiment 1 were used. The second embodiment is designed to be used mainly as a pillow.

FIGS. 11( a ) and ( b ) are photographs showing a state in which the pillow 1 is placed on the ground with the longest direction of the bag body parallel to the direction of gravity. Figure 11(a) is a side photo, and Figure 11(b) is a top photo.

When the top of the pillow 1 is extended upward, as shown in Figure 11(c), the space (vacancy) where there is no filling material can be taken as 1/3 to 1/3 of the maximum length (X) of the pillow 1 A length (X1) of 5 is formed on the upper part of the pillow 1 . In addition, the maximum length of the pillow 1 is about 90 cm.

When a disc with a diameter of 20 cm was pressed against the pillow 1 and a force of 1 to 20 kg was applied to the disc in the direction of gravity, it was confirmed that the disc would touch the bottom of the pillow.

FIGS. 12( a ) and ( b ) are photographs showing a state in which the pillow 1 is placed on the ground so that the longest direction of the bag body is parallel to the ground. Figure 12(a) is a side photo, and Figure 12(b) is a top photo. The maximum length in this state is about 1 m, and the average thickness is about 20 cm.

As shown in FIG. 12 , the pillow 1 is not overfilled with the filling material, so the pillow 1 expands parallel to the ground. In this state, for example, as shown in the photographs of FIGS. 13( a ) and ( b ), the pillow 1 can be used in a supine or prone manner. The pillow 1 is of a size that can be placed from the head to the buttocks. By using the above supine or prone way, the pillow 1 will For the movement of the filling material and the expansion and contraction of the bag body, it is stretched to the front, back, left and right relative to the ground, and it is greatly deformed as if it contains the head to the buttocks, so a large healing effect can be obtained.

In addition, in the part where the pillow comes into contact with the head from the buttocks, the buttocks touch the bottom of the pillow, and in the part adjacent to the part in contact, the pillow 1 flows along the path from the head due to the flow of the filling material. Up to the shape of the buttocks. Therefore, taking any posture allows the body pressure to be dispersed properly without concentrating it on one point.

Furthermore, during the turning process, the bag body will expand and contract, and the filling material will also flow (playing the role of a rotating body), so that the pillow 1 can be easily deformed according to the changes of the upper body. For example, in the photograph of FIG. 13( c ), the state of facing the side between the upward tilt and the prone position is shown.

Using the body pressure dispersion meter, it was confirmed that by using the pillow, the body pressure from head to toe can be more approximately uniformly dispersed in any posture than when the pillow is not used.

In addition, it was confirmed that in the pillow of Embodiment 2, as in Embodiment 1, (i) the buttocks touch the bottom of the pillow, and (ii) when turning over on the pillow, there is foam in the lower part of the buttocks. The beads act as a turning body, making it easy to roll over.

In addition, when used in an upside-down manner, the buttocks are tied to the pillow 1 to sink to the bottom. On the other hand, from the shoulder to the head, there is a filler moving from the vicinity of the buttocks in the lower part, and it is in a raised state. In this state, the head to the buttocks are contained by the pillow 1, and the waist is in a moderately curved posture. By taking this posture, one can expect an improvement in healing offering and an improvement in the quality of sleep.

Furthermore, the pillow 1 can also be covered with the outer cover 1a shown in the top view of FIG. 14( a ), the rear view of FIG. 14( b ) and the side view of FIG. 14( c ). Like the pillow 1, the cover 1a is made of a stretchable material. It is preferable that the outer cover 1a has a stretchability larger than that of the bag body. The outer jacket 1a may be composed of the same woven fabric as the bag body, or may be composed of a different woven fabric from the bag body (for example, a woven fabric composed of polyester and polyurethane).

Pillow 1 is also suitable for sitting on top and prone on top as shown in Fig. 15(a) and (b), as shown in Fig. 15(a) and (b), and for use in Use on the sofa. Furthermore, as in Embodiment 1, as shown in FIGS. 17( a ) and ( b ), it is easy to change the body position with less force through the cloth 4 with low stretchability.

(implementation 3)

18 to 20 show the pillow of Embodiment 3. FIG. In this pillow, the same elastic fiber woven fabric (bag body) and polystyrene expanded beads (filler) as in Embodiment 1 were used. Embodiment 3 shows a pillow envisioned for use from the head to the shoulders.

FIGS. 18( a ) and ( b ) are photographs showing a state in which the pillow 1 is placed on the ground with the longest direction of the bag body parallel to the direction of gravity. Figure 18(a) is a side photo, and Figure 18(b) is a top photo.

When the top of the pillow 1 is extended upward, as shown in Fig. 18(c), the space (vacancy) where no filling material exists can be 1/3 to 1/3 of the maximum length (X) of the pillow 1 A length (X1) of 5 is formed on the upper part of the pillow 1 . In addition, the maximum length of the pillow 1 is about 55 cm.

When a disc with a diameter of 20 cm was pressed against this pillow 1, and a force of 1 to 20 kg was applied to the disc along the direction of gravity, it was confirmed that the disc would touch the bottom of the aforementioned pillow.

Figures 19(a) and (b) are photographs showing a state in which the pillow 1 is placed on the ground with the longest direction of the bag body parallel to the ground. Figure 19(a) is a side photo, and Figure 19(b) is a top photo. The maximum length in this state is about 1 m, and the average thickness is about 30 cm.

As shown in FIG. 19 , since the pillow 1 is not overfilled with the filling material, the pillow 1 expands parallel to the ground. In this state, for example, as shown in the photographs of FIGS. 20( a ) and ( b ), the pillow 1 can be used in a supine or prone manner. The pillow 1 has a size that can be placed from the head to the shoulder (upper body). By using the above supine or prone position, the pillow 1 will be greatly deformed to accommodate the upper body due to the movement of the filling material and the expansion and contraction of the bag body relative to the ground, so that a large healing effect can be obtained.

In addition, at the part where the pillow contacts the upper body, the upper body touches the bottom of the pillow, and at the part adjacent to the contact part, the pillow 1 is raised along the shape of the upper body due to the flow of the filling material. Therefore, taking any posture allows the body pressure to be dispersed properly without concentrating it on one point.

Using the body pressure dispersion meter, it was confirmed that by using the pillow, the body pressure from head to toe can be more approximately uniformly dispersed in any posture than when the pillow is not used.

Furthermore, during the turning process, the bag body will expand and contract, and the filling material will also flow (playing the role of a rotating body), so that the pillow 1 can be easily deformed according to the changes of the upper body. For example, in the photograph of FIG. 20( c ), the state of facing the side between the upward tilt and the prone position is shown.

In addition, it was confirmed that the pillow of Embodiment 3, as in Embodiment 1, when lying down with the buttocks abutting, (i) the buttocks touch the bottom of the pillow, (ii) when turning over on the pillow , the foamed beads existing in the lower part of the buttocks will play the role of a rotating body, so that it is easy to turn over.

(implementation 4)

In Embodiments 1 to 3, a pillow whose bag body is one air chamber is exemplified. The pillow of the present invention may have a structure in which the bag body is divided into two or more air chambers by a partition wall. The properties (i) and (ii) described above may be provided by at least one gas cell among the plurality of gas cells. Other air cells may or may not have the above properties (i) and (ii). The partition wall can be formed by adding another cloth to the bag body, or directly adding the bag body. When a plurality of air chambers are provided, the type of filling material may or may not be changed according to each air chamber. Furthermore, the filling rate can be changed for each air chamber.

FIG. 21 is a schematic plan view showing a state where the pillow 1 with two air cells is placed on the ground so that its longest direction is parallel to the ground. The pillow of FIG. 21 is divided into two air chambers by directly sewing the bag body. In the figure, 6 denotes a seam portion, 7a denotes a small air chamber, and 7b denotes an air chamber.

For example, by overfilling the small air chamber 7a and making the air chamber 7b have the above-mentioned properties (i) and (ii), the small air chamber 7a can be used as a pillow and the air chamber 7b can be used as a cushion. The integrated form of the pillow has the advantage that it can be turned over very easily and the head can be held at an appropriate height.

1: pillow

a: The contact part between the ground and the pillow

X: maximum length

X1: Maximum length (length)

Claims (10)

A pillow for human use, which at least has a bag body at least a part of which is stretchable, and a filling material in the bag body: The aforementioned filling material comprises expanded beads; When the pillow is placed on the ground so that the longest direction of the pillow is parallel to the direction of gravity, and the top of the pillow is extended upward so that the contact area between the ground and the pillow does not change, there is no The space for the aforementioned filling material is formed on the upper portion of the aforementioned pillow with a length of 1/10 to 2/3 of the maximum length of the aforementioned pillow; When a person is lying down with at least the buttocks against the pillow placed on the ground with the longest direction parallel, the buttocks touch the bottom of the pillow. The pillow according to claim 1, which is a human pillow, at least comprising a bag body at least a part of which is stretchable, and a filling material in the bag body; The aforementioned filling material comprises expanded beads; When the pillow is placed on the ground so that the longest direction of the pillow is parallel to the direction of gravity, and the top of the pillow is extended upward so that the contact area between the ground and the pillow does not change, there is no The space for the aforementioned filling material is formed on the upper portion of the aforementioned pillow with a length of 1/10 to 2/3 of the maximum length of the aforementioned pillow; When a person is lying down so that at least the buttocks abut on the pillow placed on the ground with the longest direction being parallel, the buttocks will touch the bottom of the pillow; When the aforementioned person turns over on the aforementioned pillow, the aforementioned expanded beads existing in the lower part of the aforementioned buttocks act as a rotating body, so that turning over can be easily performed. The pillow according to claim 1 or 2, wherein the pillow placed on the ground will bulge on the left and right sides of the buttocks due to the movement of the expanded beads; When the person turns over, the stretchability of the bag body and the function of the expanded beads as a rotating body maintain the left and right bulge, and the plane positions of the buttocks before and after turning over are approximately same. The pillow according to any one of claims 1 to 3, wherein after a person sits on the pillow in a prone or supine manner with a cloth interposed therebetween, if another person pulls the cloth, the above-mentioned The foamed beads play the role of a rotating body, so that the body position can be easily changed with less force, and the plane positions of the buttocks before and after pulling are approximately the same. The pillow according to any one of claims 1 to 4, wherein when a person is lying down with at least buttocks abutting on the pillow, the pillow is provided with a concave portion, and the concave portion is made of the filling material so that the It is formed by moving the buttocks to the bottom of the aforementioned pillow without the upper body and thighs touching the bottom. The pillow according to any one of claims 1 to 5, wherein the maximum length of the pillow is 20 cm to 3 m. The pillow according to any one of claims 1 to 6 is provided with the pillow that can be placed on the ground in such a way that the longest direction is parallel to the ground, and when a person is sitting on the pillow in a supine position, the pillow can be placed on the head. The size of the top to the buttocks. The pillow according to any one of claims 1 to 7, wherein the aforementioned bag system has a stretchability of 10 to 500%. The pillow according to any one of claims 1 to 8, wherein the aforementioned person is an adult. The pillow according to any one of claims 1 to 7, which is a pillow comprising at least a partially stretchable bag body and a filling material in the bag body, When the pillow is placed on the ground so that the longest direction of the pillow is parallel to the direction of gravity, and the top of the pillow is extended upward so that the contact area between the ground and the pillow does not change, there is no The space for the aforementioned filling material is formed on the upper portion of the aforementioned pillow with a length of 1/10 to 2/3 of the maximum length of the aforementioned pillow; When a disc with a diameter of 20 cm is pressed against the aforementioned pillow, and a force of 1 to 20 kg is applied to the aforementioned disc along the direction of gravity, the aforementioned disc will touch the bottom of the aforementioned pillow.

Images